Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents	$ 65,913	$ 53,137
Short-term investments	1,245	0
Accounts receivable, net	56,697	42,221
Other receivables	26,311	0
Inventories, net	11,544	18,216
Contract assets	8,030	8,140
Prepaid expenses and other current assets	4,532	4,877
Total current assets	174,272	126,591
Deferred tax assets, net	33,043	46,982
Property and equipment, net	26,015	24,020
Operating lease right-of-use assets	3,774	4,621
Intangibles, net	17,879	7,693
Goodwill	1,095	1,095
Other long-term assets	1,427	1,529
Total assets	257,505	212,531
Current liabilities
Accounts payable	17,056	16,194
Accrued expenses and other liabilities	35,043	25,635
Current maturities of long-term debt, net	1,500	16,230
Operating lease liabilities, current	904	1,203
Deferred revenue	4,427	3,943
Total current liabilities	58,930	63,205
Long-term debt, less current maturities	18,241	24,669
Operating lease liabilities, long-term	4,576	4,816
Other long-term liabilities	0	726
Total liabilities	81,747	93,416
Commitments and contingencies
Stockholders’ Equity
Preferred Stock: $0.01 par; 3,000 shares authorized, none outstanding	0	0
Common Stock: $0.01 par; 300,000 shares authorized; 170,072 and 166,836 issued and outstanding as of December 31, 2021 and December 31, 2020, respectively	1,701	1,668
Additional paid-in capital	351,079	340,756
Accumulated deficit	(176,337)	(222,626)
Accumulated other comprehensive loss	(685)	(683)
Total stockholders’ equity	175,758	119,115
Total liabilities and stockholders’ equity	$ 257,505	$ 212,531